package com.jly.Message;

import com.jly.Util.util;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Locale;

@Configuration
public class LocaleConfig implements WebMvcConfigurer {

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/");
    }

    @Bean
    public LocaleResolver localeResolver(){
        return new NativeLocaleResolver();
    }

    protected static class NativeLocaleResolver implements LocaleResolver{

        @Override
        public Locale resolveLocale(HttpServletRequest request) {
            String language = request.getParameter("language");
            Locale locale = Locale.getDefault();
            if(!util.isEmpty(language)){
                String[] split = language.split("_");
                locale = new Locale(split[0],split[1]);
            }
            return locale;
        }

        @Override
        public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {

        }
    }

    /**
     * 跨域支持
     * @param registry
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedMethods("GET", "POST", "DELETE", "PUT")
                .maxAge(3600 * 24);
    }
}
